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- heatsink compound expiration?
- Fred Aspect
May 31, 2005, 9:35 pm
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This might be slightly off-topic, so apologies in advance. Basically, I
have an unopened tube of heatsink compound that I was thinking of using.
Trouble is, the tube is about 4 years old. So my question is whether I
should use it or not? Does that stuff go bad at all?
Thanks in advance for any replies,
Re: heatsink compound expiration?
And while in the tube that is probably true.
However once you subject it to the heat between CPU and
heatsink they can dry out between 12 months and 10 years.
Generally the high performance ones will need replacing
every 12 months to maintain the best performance.
My brother is an automotive mechanic and they use heat transfer
paste to mount electronic ignition modules as the module needs
to transfer heat away from the transistors to the car body. In
every failure he has had the heat transfer paste has dried out.
He replaces the paste on his own car every 5 years, as the
modules can cost $500 or more but the paste is almost free,
well for him it _is_ free.
P.S. If you bump the heatsink while poking around inside
your case and it moves on the CPU, better replace the paste
as you have disturbed the thermal interface.